//根据QueryString参数名称获取值

function getQueryStringByName(name) {

    var result = location.search.match(new RegExp("[\?\&]" + name + "=([^\&]+)", "i"));

    if (result == null || result.length < 1) {

        return "";

    }

    return result[1];

}

function getCookie(name) {
    var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
    if (arr = document.cookie.match(reg))
        return unescape(arr[2]);
    else
        return null;
}

function setCookie(name, value) {
    var Days = 30;
    var exp = new Date();
    exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
    document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();
}

function delCookie(name) {
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var cval = getCookie(name);
    if (cval != null)
        document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();
}

function checkUser(str) {
    var re = /^\d+$/;
    if (re.test(str)) {
        return false;
    } else {
        return true;
    }
}

function checkSpecial(str) {
    var re = /^[0-9a-zA-Z\u4e00-\u9fa5]+$/;
    if (re.test(str)) {
        return true;
    } else {
        return false;
    }
}

function checkEmail(str) {
    var re = /^(\w-*\.*)+@(\w-?)+(\.\w{2,})+$/
    if (re.test(str)) {
        return true;
    } else {
        return false;
    }
}

function checkMobile(str) {
    var re = /^1\d{10}$/
    if (re.test(str)) {
        return true;
    } else {
        return false;
    }
}
module.exports = {
    url: {
        params: getQueryStringByName,
        getCookie: getCookie,
        setCookie: setCookie,
        delCookie: delCookie
    },
    checkMobile: checkMobile,
    checkUser: checkUser,
    checkSpecial: checkSpecial
}